CN112709218B - Underground continuous wall structure using spliced reinforcement cage and construction method thereof - Google Patents
Underground continuous wall structure using spliced reinforcement cage and construction method thereof Download PDFInfo
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- CN112709218B CN112709218B CN202011561284.3A CN202011561284A CN112709218B CN 112709218 B CN112709218 B CN 112709218B CN 202011561284 A CN202011561284 A CN 202011561284A CN 112709218 B CN112709218 B CN 112709218B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
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Abstract
The invention discloses an underground continuous wall structure using a splicing type reinforcement cage and a construction method thereof, wherein the underground continuous wall structure comprises: the steel reinforcement cages are arranged on the wall body; the steel reinforcement cage includes: the steel bar comprises vertical stressed steel bars, vertical positioning steel bars, inner stirrups and outer stirrups; the inner side stirrup is sequentially wound by two rows of vertical stressed steel bars which are positioned at the end parts and are opposite to each other, and the two ends of the inner side stirrup are positioned at the inner sides of the two rows of vertical stressed steel bars; the outer stirrups are sequentially wound by two rows of vertical stressed steel bars corresponding to two positions of the open ends of the inner stirrups, and the two ends of the outer stirrups are positioned on the outer sides of the two rows of vertical stressed steel bars; the outer sides of the two side edges of the opening end of the inner stirrup are respectively and fixedly connected with the vertical positioning steel bars at the corresponding positions, and the inner sides of the two side edges of the opening end of the outer stirrup are respectively and fixedly connected with the vertical positioning steel bars at the corresponding positions. The invention keeps the traditional underground continuous wall structure with large rigidity and good water stopping effect, and the steel reinforcement cage is flexibly and conveniently placed.
Description
Technical Field
The invention relates to the technical field of building structures and foundation pit engineering, in particular to an underground continuous wall structure using a splicing type reinforcement cage and a construction method thereof.
Background
With the development and utilization scale of underground space becoming larger and larger, the demand for constructing underground space under complex construction conditions is increasing, and the current common vertical support systems are generally divided into two types: underground continuous wall systems and pile systems. The underground continuous wall system is safe and reliable, but has the following defects: 1. because the reinforcement cage is large in size, a large number of reinforcements are required to be arranged for maintaining the rigidity and stability of the reinforcement cage, so that the waste of steel and the increase of workload are caused; 2. the steel reinforcement cage with huge volume needs to use large-scale hoisting equipment (usually two hoisting equipment are needed to work simultaneously) and a large-area work site, and cannot adapt to a complex construction environment. The construction of the pile system is more flexible, the cost is lower, but the following disadvantages exist: 1. due to the discontinuity of the piles, a waterproof curtain is required to be arranged in general conditions, and the number of working procedures is large; 2. the pile and the waterproof curtain have poor stress performance; 3. the waterproof performance is poor, and the water leakage point is difficult to detect and repair.
Therefore, the research of the underground continuous wall structure using the spliced reinforcement cage and the construction method thereof, which can keep the traditional underground continuous wall structure to have high rigidity and good water stop effect and have the characteristics of flexible and convenient arrangement of the reinforcement cage of the row pile supporting structure, is a problem to be solved by technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides an underground continuous wall structure using a spliced reinforcement cage and a construction method thereof, wherein the underground continuous wall structure can keep the traditional underground continuous wall structure to have high rigidity and good water stop effect, and has the characteristics of flexible and convenient arrangement of the reinforcement cage of the row pile supporting structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
an underground continuous wall structure using a spliced reinforcement cage, comprising:
the wall body is provided with a plurality of wall bodies,
a plurality of reinforcement cages which are spliced and fixed inside the wall body side by side along the length direction of the wall body; the reinforcement cage includes: the steel bar comprises vertical stressed steel bars, vertical positioning steel bars, inner stirrups and outer stirrups; the number of the vertical stressed steel bars is multiple, two rows of the vertical stressed steel bars are arranged along the length direction of the wall body, and the two rows of the vertical stressed steel bars correspond to one another; the inner side stirrups are sequentially wound around the two rows of vertical stressed steel bars opposite to the two positions of the end parts of the vertical stressed steel bars, the two ends of each inner side stirrup are positioned on the inner sides of the two rows of vertical stressed steel bars, and one end of each inner side stirrup is open; the outer stirrups are sequentially wound around two rows of vertical stressed steel bars corresponding to two positions of the vertical stressed steel bars at the open ends of the inner stirrups, two ends of each outer stirrup are positioned at the outer sides of the two rows of vertical stressed steel bars, and one end of each outer stirrup, which is opposite to the open end of the inner stirrup, is in an open shape; the vertical positioning reinforcing steel bars are respectively arranged at the end parts of the two rows of vertical stressed reinforcing steel bars and are arranged side by side with the vertical stressed reinforcing steel bars; the outer sides of two side edges of the opening end of the inner stirrup are respectively and fixedly connected with the vertical positioning steel bars at corresponding positions, and the inner sides of two side edges of the opening end of the outer stirrup are respectively and fixedly connected with the vertical positioning steel bars at corresponding positions; it is a plurality of the steel reinforcement cage sets up side by side in proper order, steel reinforcement cage wherein one end vertical positioning reinforcing bar pegs graft adjacent the steel reinforcement cage vertical positioning reinforcing bar is close to one side of vertical atress reinforcing bar.
The technical scheme has the beneficial effects that the spliced reinforcement cage is adopted, so that the size of the reinforcement cage can be reduced, shear oblique ribs, transverse reinforcement trusses, vertical reinforcement trusses and the like which are arranged for ensuring the rigidity and stability of the reinforcement cage are avoided, the using amount of reinforcements is saved, the workload of binding the reinforcements is reduced, meanwhile, the occupied area during operation can be effectively reduced, and the spliced reinforcement cage is suitable for narrow and complex conditions of a construction site.
Preferably, inboard stirrup and outside stirrup are located the same high position of vertical atress reinforcing bar, just the contact site fixed connection of inboard stirrup and outside stirrup follows the length direction of vertical atress reinforcing bar is equipped with the multiunit inboard stirrup and outside stirrup for the whole steadiness of steelframe cage is better.
Preferably, the inner stirrup includes: the first transverse stress section, the first longitudinal stress section and the first positioning section; the first transverse stress section is provided with two sections which are arranged at two ends of the first longitudinal stress section in parallel, and the first transverse stress section is parallel to the two rows of vertical stress steel bars, is positioned at the inner sides of the two rows of vertical stress steel bars and is fixedly connected with the vertical stress steel bars; the two first positioning sections are respectively fixed at one end of the first transverse stress section, which is far away from the first longitudinal stress section, and are fixedly connected with the vertical positioning reinforcing steel bars; and two ends of the first longitudinal stress section are fixedly connected with the end part of the first transverse stress section after respectively winding the vertical stress reinforcing steel bars for 270 degrees.
Preferably, the outer stirrup includes: the second transverse stress section, the second longitudinal stress section and the second positioning section; the second transverse stress section is provided with two sections which are arranged at two ends of the second longitudinal stress section in parallel, and the second transverse stress section is parallel to the two rows of the vertical stress reinforcing steel bars, is positioned at the outer sides of the two rows of the vertical stress reinforcing steel bars and is fixedly connected with the vertical stress reinforcing steel bars; the two second positioning sections are respectively fixed at one end of the second transverse stress section, which is far away from the second longitudinal stress section, and are fixedly connected with the vertical positioning reinforcing steel bars; and two ends of the second longitudinal stress section are fixedly connected with the end part of the second transverse stress section after respectively winding the vertical stress reinforcing steel bars for 540 degrees.
Preferably, the vertical stressed steel bars are further fixed to the middle portions of the inner sides of the first longitudinal stressed section and the second longitudinal stressed section, so that the vertical stressed steel bars are more stably connected with the outer stirrups and the inner stirrups.
A construction method of an underground continuous wall structure using a spliced reinforcement cage comprises the following steps:
1) firstly, excavating a groove section downwards on the ground surface to a height required by the wall body poured underground;
2) then pouring a concrete guide wall on the side wall of the groove section;
3) coating mud on the surface of the concrete guide wall for wall protection;
4) slag removal is carried out on the bottom of the groove section, the reinforcement cages are placed in the groove section one by one after the slag removal is finished, and adjacent reinforcement cages are spliced and positioned through the vertical positioning reinforcements;
5) and lowering a guide pipe and pouring concrete into the groove section to the top of the groove section to form the wall body.
The beneficial effects of adopting above-mentioned technical scheme are that, connect the steel reinforcement cage through the mode of concatenation, area when can reducing the operation adapts to the narrow and small complicated condition in construction place.
According to the technical scheme, compared with the prior art, the invention discloses an underground continuous wall structure using a splicing type reinforcement cage and a construction method thereof, and the underground continuous wall structure has the following beneficial effects:
(1) the structural form of the underground continuous wall is reserved, and the mechanical property, the seepage-proofing performance and the leakage-proofing performance of the enclosure structure are ensured;
(2) by using the spliced reinforcement cage, the size of the reinforcement cage is reduced, shear oblique ribs, transverse reinforcement trusses, vertical reinforcement trusses and the like which are arranged for ensuring the rigidity and stability of the reinforcement cage are avoided, the using amount of reinforcements is saved, and the workload for binding the reinforcements is reduced;
(3) the combined action of the vertical stressed steel bars and the vertical positioning steel bars ensures the mechanical property of the structure and also ensures that the steel reinforcement cage can be quickly and accurately positioned in the construction process;
(4) the splicing type reinforcement cage can avoid the use of large-scale hoisting equipment and a double-machine hoisting operation mode, effectively reduces the occupied area during operation, and adapts to the narrow and complex situation of a construction site.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a plurality of reinforcement cages according to the present invention in a splicing state;
FIG. 2 is a top view of a plurality of reinforcement cages in a splicing state according to the present invention;
FIG. 3 is a schematic structural view of a reinforcement cage according to the present invention;
FIG. 4 is a top view of a reinforcement cage according to the present invention;
FIG. 5 is a schematic structural view of an inner stirrup in the reinforcement cage according to the present invention;
FIG. 6 is a schematic structural view of an outer stirrup in the reinforcement cage according to the present invention;
FIG. 7 is a cross-sectional view of a surface excavation trough section provided by the present invention;
FIG. 8 is a cross-sectional view of a guide wall made of concrete poured inside a trough section according to the present invention;
FIG. 9 is a cross-sectional view of a reinforcement cage disposed within a trough section according to the present invention;
fig. 10 is a cross-sectional view of a cast wall in a trough section provided by the present invention.
Wherein, in the figure,
1-a wall body;
2-a reinforcement cage;
21-vertical stressed steel bars; 22-vertical positioning steel bars;
23-inside stirrup;
231-a first transverse force-bearing section; 232-a first longitudinal force-bearing segment; 233-a first positioning section;
24-outer stirrups;
241-a second transverse force-bearing segment; 242-a second longitudinal force-bearing segment; 243-a second positioning section;
3-a trough section; 4-concrete guide wall; 5-protecting the wall; 6-the earth's surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses an underground continuous wall structure using a splicing type reinforcement cage, which comprises:
the wall body 1 is provided with a plurality of wall bodies,
a plurality of reinforcement cages 2 are arranged, and are spliced and fixed inside the wall body 1 side by side along the length direction of the wall body 1; the reinforcement cage 2 includes: the vertical stressed steel bars 21, the vertical positioning steel bars 22, the inner stirrups 23 and the outer stirrups 24; a plurality of vertical stressed steel bars 21 are arranged, two rows of vertical stressed steel bars 21 are arranged along the length direction of the wall body 1, and the two rows of vertical stressed steel bars 21 correspond to one another; the inner stirrups 23 are sequentially wound by two rows of vertical stressed steel bars 21 which are positioned at the end parts and are opposite to each other, the two ends of the inner stirrups 23 are positioned at the inner sides of the two rows of vertical stressed steel bars 21, and one ends of the inner stirrups 23 are open; the outer stirrup 24 is sequentially wound around the two rows of vertical stressed steel bars 21 corresponding to the two positions of the two rows of vertical stressed steel bars 21 at the open end of the inner stirrup 23, the two ends of the outer stirrup 24 are positioned outside the two rows of vertical stressed steel bars 21, and one end of the outer stirrup 24 opposite to the open end of the inner stirrup 23 is open; a plurality of vertical positioning steel bars 22 are respectively arranged at the end parts of the two rows of vertical stressed steel bars 21 and are arranged side by side with the vertical stressed steel bars 21; the outer sides of two side edges of the opening end of the inner stirrup 23 are respectively and fixedly connected with the vertical positioning steel bars 22 at corresponding positions, and the inner sides of two side edges of the opening end of the outer stirrup 24 are respectively and fixedly connected with the vertical positioning steel bars 21 at corresponding positions; a plurality of steel reinforcement cages 2 set up side by side in proper order, and the vertical positioning reinforcing bar 22 of steel reinforcement cage 2 wherein one end is pegged graft to the vertical positioning reinforcing bar 22 of adjacent steel reinforcement cage 2 is close to one side of vertical atress reinforcing bar 21.
In order to further optimize the technical scheme, as shown in fig. 3, the inner stirrups 23 and the outer stirrups 24 are located at the same height position of the vertical stressed steel bars 21, contact portions of the inner stirrups 23 and the outer stirrups 24 are fixedly connected, three groups of inner stirrups 23 and three groups of outer stirrups 24 are arranged along the length direction of the vertical stressed steel bars 21 and are located at the upper position, the middle position and the lower position of the vertical stressed steel bars 21 respectively.
In order to further optimize the above solution, the medial stirrup 23 comprises: a first transverse force-bearing section 231, a first longitudinal force-bearing section 232, a first positioning section 233; the first transverse stress section 231 is provided with two sections which are arranged at two ends of the first longitudinal stress section 232 in parallel, and the first transverse stress section 231 is parallel to the two rows of vertical stress steel bars 21, is positioned at the inner sides of the two rows of vertical stress steel bars 21 and is fixedly connected with the vertical stress steel bars 21; two first positioning sections 233 are respectively fixed at one end of the first transverse stress section 231, which is far away from the first longitudinal stress section 232, and are fixedly connected with the vertical positioning steel bars 22; two ends of the first longitudinal stress section 232 are respectively fixedly connected with the end of the first transverse stress section 231 after winding the vertical stress steel bars 21270 degrees.
In order to further optimize the above solution, the outer stirrup 24 comprises: a second transverse force-bearing section 241, a second longitudinal force-bearing section 242, and a second positioning section 243; the second transverse stress section 241 is provided with two sections which are arranged at two ends of the second longitudinal stress section 242 in parallel, and the second transverse stress section 241 is parallel to the two rows of vertical stress steel bars 21, is positioned at the outer sides of the two rows of vertical stress steel bars 21 and is fixedly connected with the vertical stress steel bars 21; two second positioning sections 243 are respectively fixed at one end of the second transverse stress section 241 far away from the second longitudinal stress section 242, and are fixedly connected with the vertical positioning steel bars 22; two ends of the second longitudinal stress section 242 are fixedly connected with the end of the second transverse stress section 241 after respectively surrounding the vertical stress steel bar for 21540 degrees.
In order to further optimize the technical scheme, the vertical force-bearing steel bars 21 are further fixed in the middle of the inner sides of the first longitudinal force-bearing section 232 and the second longitudinal force-bearing section 242.
Splicing process of a plurality of reinforcement cages:
a plurality of steel reinforcement cages 2 are arranged along 1 length direction of wall body according to unified order, place a steel reinforcement cage 2 earlier during the concatenation, then next steel reinforcement cage 2 of placing is neat according to arranging in the same order with last steel reinforcement cage 2, the vertical positioning reinforcing bar 22 of the 2 tip of steel reinforcement cage of placing afterwards is pegged graft between vertical positioning reinforcing bar 22 and the vertical atress reinforcing bar 21 of the 2 tip of steel reinforcement cage rather than adjacent, and with vertical positioning reinforcing bar 22 contact to its location, a plurality of steel reinforcement cages 2 are pegged graft along 1 length direction of wall body in proper order can.
A construction method of an underground continuous wall structure using a spliced reinforcement cage comprises the following steps:
1) firstly, a groove section 3 is dug downwards on the ground surface 6 to the height required by the underground pouring of the wall body 1;
2) then, a concrete guide wall 4 is poured on the side wall of the groove section 3;
3) coating slurry on the surface of the concrete guide wall 4 to protect the wall 5;
4) slag removal is carried out on the bottom of the groove section 3, after the slag removal is finished, the reinforcement cages 2 are placed in the groove section 3 one by one, and the adjacent reinforcement cages 2 are spliced and positioned through the vertical positioning reinforcements 22;
5) the conduit is lowered and concrete is poured into the trough section 3 to the top of the trough section 3 to form the wall 1.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides an use underground continuous wall structure of concatenation formula steel reinforcement cage which characterized in that includes:
a wall body (1),
the steel reinforcement cages (2) are arranged in plurality and are spliced and fixed in the wall body (1) side by side along the length direction of the wall body (1); the reinforcement cage (2) comprises: the vertical stressed steel bars (21), the vertical positioning steel bars (22), the inner stirrups (23) and the outer stirrups (24); the number of the vertical stressed steel bars (21) is multiple, two rows of the vertical stressed steel bars (21) are arranged along the length direction of the wall body (1), and the two rows of the vertical stressed steel bars (21) correspond to one another; the inner stirrups (23) are sequentially wound on the two rows of vertical stressed steel bars (21) which are positioned at the end parts and are opposite to each other, two ends of each inner stirrup (23) are positioned at the inner sides of the two rows of vertical stressed steel bars (21), and one end of each inner stirrup (23) is open; the outer stirrups (24) are sequentially wound by two rows of vertical stressed steel bars (21) which are positioned at two corresponding positions of the open ends of the inner stirrups (23), two ends of the outer stirrups (24) are positioned at the outer sides of the two rows of vertical stressed steel bars (21), and one ends of the outer stirrups (24) opposite to the open ends of the inner stirrups (23) are open; a plurality of vertical positioning reinforcing steel bars (22) are arranged and are respectively positioned at the end parts of the two rows of vertical stressed reinforcing steel bars (21) and are arranged side by side with the vertical stressed reinforcing steel bars (21); the outer sides of two side edges of the opening end of the inner side stirrup (23) are respectively and fixedly connected with the vertical positioning steel bar (22) at the corresponding position, and the inner sides of two side edges of the opening end of the outer side stirrup (24) are respectively and fixedly connected with the vertical positioning steel bar (22) at the corresponding position; the plurality of reinforcement cages (2) are sequentially arranged side by side, and the vertical positioning steel bars (22) at one end of each reinforcement cage (2) are inserted into one side, close to the vertical stressed steel bars (21), of the vertical positioning steel bars (22) of the adjacent reinforcement cage (2);
the inner stirrup (23) comprises: a first transverse force-bearing section (231), a first longitudinal force-bearing section (232), a first positioning section (233); the first transverse stress section (231) is provided with two sections which are arranged at two ends of the first longitudinal stress section (232) in parallel, and the first transverse stress section (231) is parallel to the two rows of vertical stress steel bars (21), is positioned at the inner sides of the two rows of vertical stress steel bars (21), and is fixedly connected with the vertical stress steel bars (21); the number of the first positioning sections (233) is two, the two first positioning sections are respectively fixed at one end, away from the first longitudinal stress section (232), of the first transverse stress section (231), and are fixedly connected with the vertical positioning steel bars (22); two ends of the first longitudinal stress section (232) are fixedly connected with the end part of the first transverse stress section (231) after respectively winding the vertical stress reinforcing steel bars (21) for 270 degrees;
the outer stirrup (24) comprises: a second transverse stress section (241), a second longitudinal stress section (242) and a second positioning section (243); the second transverse stress section (241) is provided with two sections which are arranged at two ends of the second longitudinal stress section (242) in parallel, and the second transverse stress section (241) is parallel to the two rows of vertical stress steel bars (21), is positioned at the outer sides of the two rows of vertical stress steel bars (21), and is fixedly connected with the vertical stress steel bars (21); the two second positioning sections (243) are respectively fixed at one end, far away from the second longitudinal stress section (242), of the second transverse stress section (241) and fixedly connected with the vertical positioning steel bar (22); and two ends of the second longitudinal stress section (242) are fixedly connected with the end part of the second transverse stress section (241) after respectively winding the vertical stress reinforcing steel bars (21) for 540 degrees.
2. An underground continuous wall structure using a spliced reinforcement cage according to claim 1, wherein the inner stirrups (23) and the outer stirrups (24) are located at the same height position of the vertical reinforcement (21), the contact positions of the inner stirrups (23) and the outer stirrups (24) are fixedly connected, and a plurality of groups of the inner stirrups (23) and the outer stirrups (24) are arranged along the length direction of the vertical reinforcement (21).
3. An underground continuous wall structure using a spliced reinforcement cage according to claim 1, wherein the vertical force-bearing steel bars (21) are further fixed to the middle of the inner sides of the first longitudinal force-bearing section (232) and the second longitudinal force-bearing section (242).
4. A construction method of an underground continuous wall structure using a spliced reinforcement cage according to any one of claims 1 to 3, comprising the steps of:
1) firstly, a groove section (3) is excavated downwards on the ground surface (6) to the height required by the underground pouring of the wall body (1);
2) then, pouring a concrete guide wall (4) on the side wall of the groove section (3);
3) smearing slurry on the surface of the concrete guide wall (4) to protect the wall (5);
4) slag is removed from the bottom of the groove section (3), the reinforcement cages (2) are placed in the groove section (3) one by one after slag removal is finished, and the adjacent reinforcement cages (2) are spliced and positioned through the vertical positioning reinforcements (22);
and (3) lowering a guide pipe and pouring concrete into the groove section (3) to the top of the groove section (3) to form the wall body (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011561284.3A CN112709218B (en) | 2020-12-25 | 2020-12-25 | Underground continuous wall structure using spliced reinforcement cage and construction method thereof |
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| CN202011561284.3A CN112709218B (en) | 2020-12-25 | 2020-12-25 | Underground continuous wall structure using spliced reinforcement cage and construction method thereof |
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| CN112709218A CN112709218A (en) | 2021-04-27 |
| CN112709218B true CN112709218B (en) | 2022-07-05 |
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| CN113020835B (en) * | 2021-05-17 | 2022-08-05 | 中铁广州工程局集团深圳工程有限公司 | Equivalent ground wall reinforcement cage welding method capable of avoiding stress concentration |
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| CN205975591U (en) * | 2016-08-29 | 2017-02-22 | 江苏嘉图建筑科技有限公司 | Concatenation steel reinforcement cage |
| CN106836191A (en) * | 2017-01-20 | 2017-06-13 | 中国建筑第四工程局有限公司 | The construction method of subway building enclosure ground-connecting-wall under a kind of low clearance |
| TW201814117A (en) * | 2016-10-07 | 2018-04-16 | 易利隆鋼鐵有限公司 | Pre-assembled column of reinforcing bar and method for producing thereof |
| CN208830585U (en) * | 2018-08-13 | 2019-05-07 | 中建八局第三建设有限公司 | A kind of reinforcement structure of the rib of large-span prestressed T plate |
| CN112112366A (en) * | 2020-08-25 | 2020-12-22 | 同济大学 | Flexible fiber rope combined stirrup |
-
2020
- 2020-12-25 CN CN202011561284.3A patent/CN112709218B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205975591U (en) * | 2016-08-29 | 2017-02-22 | 江苏嘉图建筑科技有限公司 | Concatenation steel reinforcement cage |
| TW201814117A (en) * | 2016-10-07 | 2018-04-16 | 易利隆鋼鐵有限公司 | Pre-assembled column of reinforcing bar and method for producing thereof |
| CN106836191A (en) * | 2017-01-20 | 2017-06-13 | 中国建筑第四工程局有限公司 | The construction method of subway building enclosure ground-connecting-wall under a kind of low clearance |
| CN208830585U (en) * | 2018-08-13 | 2019-05-07 | 中建八局第三建设有限公司 | A kind of reinforcement structure of the rib of large-span prestressed T plate |
| CN112112366A (en) * | 2020-08-25 | 2020-12-22 | 同济大学 | Flexible fiber rope combined stirrup |
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